70707799716849 has 9 divisors (see below), whose sum is σ = 102133524918009. Its totient is φ = 47138516326980.

The previous prime is 70707799716721. The next prime is 70707799716857. The reversal of 70707799716849 is 94861799770707.

The square root of 70707799716849 is 8408793.

It is a perfect power (a square), and thus also a powerful number.

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 70707799716849 - 2⁷ = 70707799716721 is a prime.

It is not an unprimeable number, because it can be changed into a prime (70707799716049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 23824914 + ... + 26627844.

Almost surely, 2^{70707799716849} is an apocalyptic number.

70707799716849 is the 8408793-rd square number.

70707799716849 is the 4204397-th centered octagonal number.

It is an amenable number.

70707799716849 is a deficient number, since it is larger than the sum of its proper divisors (31425725201160).

70707799716849 is an frugal number, since it uses more digits than its factorization.

70707799716849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5605868 (or 2802934 counting only the distinct ones).

The product of its (nonzero) digits is 2352442176, while the sum is 81.

The spelling of 70707799716849 in words is "seventy trillion, seven hundred seven billion, seven hundred ninety-nine million, seven hundred sixteen thousand, eight hundred forty-nine".